How a Laser Works

Is there a version without the loud bg music? It's very distracting from the words.

In Jesus' Name Amen ✝️

11 years old and still a quality recommendation on my feed

I have studied this subject for over 50 years,, I love how it works so much & loved the lightsaber concept in the movie series Star Wars so much ,saw the first show in theaters way back when the first movie came out, anyways, my point? I have actually figured out a way to make the lightsaber a real thing,, designed it while I took mechanical drafting in college,,, if anyone is interested in learning more & sponsoring me to create the thing & prove it really can be done ,,by all means contact me please.hardcore Star wars fans worldwide will love it.

Hats off Sir, you really talk well. 😊

When its explained,.but only brings up tens times more questions than I first started out with.

This video is amazing

Has anyone ever told you that you resemble a more handsome Mark Hamil

It shows us things in a new light

This explanation is suited for kids because isn't entirely accurate. For an instance, there's no small hole on one of the mirrors. One of the mirrors is just slightly less reflective than the other, which makes it possible for the light with greater intensity to pass through. That happens when the light bounces between both mirrors and creates an avalanche effect, which excites more electrons in the ruby, which in turn they produce more photons thus increasing the intensity of the light, which allows it to pass through that less reflective mirror. (Simply put)

Thank you Sir for explaining interestingly 🤠🙏

why do I feel like I'm playing Zelda.

sincere thanks for making this video

Love your channel very educational stuff!

Bill, One of the most enjoyable channels on yt. And a voice of tranquility. 👍

Best explanation of laser ever

I've always wondered how lasing light compares to laminar flow in water? Or any fluid for that matter. Intuitively it seems similar. And I've also wondered if the lasing effect can occur throughout the electromagnetic spectrum? Can long wavelength radio waves become a laser? How about cosmic rays?

He explained this like we’re all scientists lol this is amazing stuff

Na lie😂

but why can we see the laser beam?

why does this music make me better at listening?

Awesome stuff thanks!

ERIKSEN?

what happened to this great man he disappeared with no words

Does the laser immediately exit the rod when the light turns on, or must it oscillate between the mirrored end a lot of cycles (thousands, millions, billions?) to pump up the amplification until it lases? Is the laser beam continuous, or does it output as a square wave?

Can the point of lasing be controlled or is the intensity based on the dimensions of the ruby? Can the laser be made to ‘overpump’ in order to make a stronger beam?

This is super amazing and with a nice fundamental explanation. Thanks

This man is clearly a genius, hopefully he runs for president!

To the point explanation 🎉❤

Now I'll go off looking for a layman's translation of what I just heard!

Can the wind or maybe sound have an effect on a light particle?

اللى جاي من كتاب مستر محمود مجدي ❤🙋😅

Negative v Postive : Lights
Awesome Video My friend

THIS video is for people who are engineering or physics students.... NOT for the average Joe citizen.... Which is fine... It's a good video... Thank you for posting it and explaining lasers.... BUT for anyone who doesn't know more than the average Joe, it sounds like GOBLEDEE GOOK 😂

👽🛸

thank u very helpfull

Mr Mahmoud Magdy
نفسي حد يقول للمستر اننا بنفهم بالعربي بالعافيه

We were assigned this bullshit in English. I'm sure that's why most of us are here.

مين جى من عند محمود مجدي ☺️🤍🤍

But is it a particle or a wave? 😅

Science!

Ok so just put light into a ruby, that's a laser. What's the point of all this overcomplication people do.

I think in reality the explanation for how light and electricity works is so unintuitive it may in fact be an incomplete theory.

I think it's important to mention the first laser was made without understanding why it worked, that would help a lot of people out.

This channel is soooooo good. Wish there were more videos.

Please increase the music volume a little more. I could still hear him speak.

...what?...🤔...

man you sound like Neil Degrasse Tyson its uncanny

So it just comes down to a property of Ruby? I had no idea it was that simple. I gotta learn more.

I just know Bill has an episode somewhere on warp drive engines and how they work...

The greatest cat toy in history.

Looks like both lasers and dogs have a ruby rod in common 🐕